Auxiliary switch



1,694,611 c. D. AlNswoRTH AUXILIARY swITcH Filed Feb. 26, 1925 s sheets-sheet 1 Dec. 1l, 1928.

Dec. l1, 1928.

- c. D. AlNswoRTH AUXILIARY SWITCH s sheets-sheet 2 Filed Feb. 26, 1925 @auf Dec. ll, 1928.

- C. D. AlNSwoRTH AUXILIARY SWITCH 5 Sheets-Sheet Filed Feb. 26, 1925 ,5l fffffff i fffff Zwar/@277021, (5L/1m@ ,www

Patented Dec. l1, 1928.

UNITED STATES PATENT OFFICE.

CHESTER D. AINSWORTHJ OF WOLLASTON, MASSACHUSETTS, ASSIGNOR, BY MESNE AS- SIGNMENTS, T CONDIT ELECTRICAL MANUFACTURING CORPORATION, OF BOSTON, MASSACHUSETTS, A CORPORATION 0F MASSACHUSETTS.

AUXILIARY SWITCH.

Application filed February 26, 1925.

This invention relates to electrically-operated electric ci rc-uit interrupters and switches. An electrically-opera-ted circuit interruptor is usually provided with two separate electromagnets, or solenoids, Which are arranged to effect the closing and opening ot the circuit interruptor. The circuit interruptor may be remotely controlled through a suitable control circuit including a remotely-disposed and manualiy-operable circuit-controller Ytor each electro-magnet; and the manual operation ci" a cireuit-controller is arranged to effect either' the closing or the opening of the interrupter.

depei'ident upon the particular circuitecontroller operated.

An object of this invention is the provision of an auxiliary si'itch associated. with the circuit interruptor and operated therewith, and by the mechanism thereotj in such a manner that the control circuit :for the opening and closing electro-magnets is controlled and interrupted by the auxiliary switch, 'whereby to eliminate relays heretofore considered essential to the control circuit.

A further object is generally to improve electric s vfitches and interruptcrs and control circuits therefor. f

Fig. l is a fragmentary side elevation oi" a circuit interruptor provided with elcctrically operated opening and closing mechanism adapted tor remoto control and an aux iliary switch embodying the invention associated with said circuit interruptor and elec-- trically operated mechanism.

Fig. Qis a side elevation ot the auxiliary switch and illust-rating the switch in a position in which the closing electroanagnet circuit is closed.

Fig. is a trent elevation of Fig. 2.

inf Fig. fl; is a vieviy similar to Fig. 9. but with somefparts shown in section and with the :'snf'iteh in a. position in. which the opening electroanagnct circuit is closed.

l g. o is a perspective detail illustrating :L: more particularly the construction and cisposition of the opening circuit contact memhers. f

6 is a perspective detail oi' the support in; bracket tor a contact member of the clos'- iif ing circuit.

Fig. 7 is a perspective detail of the carrier tor a cor-.tact member oi the'closing circuit.

Fi S is a vertical section through the movable member of the auxiliary switch.

Serial N0. 11,887.

Fig. 9 is a diagram of the control circuit with Which the. auxiliary switch may be associa-ted.

Fig. 10 is a section along line 10-10 of Fig. 4.

The circuit interrupter 10 is provided with electrically-operated mechanism by which it may be opened and closed; and the electrically-operated mechanism includes a housing l2 which contains a solenoid 14: adapted to be energized to effect the closing ot the interrupter. The mechanism also includes a housing lo' which contains a solenoid 18 adapted to be energized to open, or trip7 the interrupter. Said mechanism includes an operating shaft 20 which is adapted to be moved angularly in a clockwise direction to effect the closing ot' the interrupter, and said shaft is adapted to be so actuated by said closing sole noid, which solenoid is operatively connected with said shai't through suitable operating members including the plunger 22 which is reciprocable Within said solenoid. Said shaft is ad apte-d to be locked in the closed position of the interrupt-er by means including the latch 24, Which latch is carried loosely by an arm 26 fixed to said shaft. Said latch is adapted to engage releasably with a stationarily-supported latch-roller 28; and a plunger 30 operable Within said opening' solenoid 18 is adapted to trip the latch, When said solenoid is energized, and permit the circuit interruptor to move to open position and the shaft 20, consequently, to rotate in a counter clockwise direction. n

The auxiliary switch embodying the invention and adapted to control the circuits for the closing and opening solenoids is carried and actuated by the electrically-operated mechanism for the circuit interrupter. Said switch includes a more or less U-shaped metal trame having the upstanding and approximately parallel spaced side Walls 32 and the integral bottom connecting Wall 3a, Which bottom Wall rests upon the housing l2 and is secured thereto by suitable means as the bolts 36. Said Ytrame is open at the back and said back-opening is closed by the heatresisting plate 38, which plate is also an electrical insulator and 'forms the back-plate or Wall ot an arc-chamber. A heat-resisting plate fl() is disposed against the upper portion ot the inner face of each upstanding side wall 32 and a similar plate 4t2 is disposed midat its lower md S 111 a lu Carried by the lowing' 1Q.

d chiens' W Y nu e V.

which *1 :u1-'1 8V i and Sioil @es #l0 vhereby to form fwfrs or Chutes ivefl 10111 1S rece 11111111- end W1 111W be pivoted to said 111 lded upmull l t l. 1 1111 uurs use 1e 1111611105@ 1 attache op-@111er u h .1 ,a l 115121'.

1 kl nifl Jar 1 11 one W] re by boits 106 a )Miei il L apertl 11 11161111161 ncuds an c1 11 Q PA LOOM switch mer bie switch arm, a stati i" v switch memb A`-r mcludin` a coiiiact me means to support saii-L ccntact member yieniingly :in position to be nf.- gaged by said switch arri "nil yiei i iii i 't the engagement, means to li r movement ot said switch n xns tor raid switch arm cooperating with limit means hold said switch arm releasably in @agement w` h said contact and actuating' membe ma ins having a lost motion coi iectic-n with operating means arranged to move said switch arm in beth di rections.

li. in el 1ctric switch having a stationary switch member including a bracket having i', ward Liirojection, a Contact member pivotally ied by said bracket above and to the rear of i `ifl projection, means yieldingly suppcrtin said contact member in such relation, and a movi ble switch niember including a pivoted switch arm arranges to engi Y i contact men'iber and thereafter engi projection oi sain bracket.

l2. An electric switch comprising spaced insulated. stationary switch members, and a cooperating movable switch mener including a piroted .sn-*itch arm, a pair ot' bars carried by and disposed on opposite sides oi and insulated trom said switch arm and arranged to cooper; te, with said stationary switch members, am means electrica ly conncctingv said ba 's'.

1S. An electric switch comprising,l a pair otspaced insulated' stationary switch members, and a cooperating movable switch meinber including a pivoted switch arm, a pair of bars carried by and disposed on opposite sides oit and extended a substantial distance above and insulated from said switch arm and arranged to cooperate with said stationarV7 switch members, and means electrically connecting said bars also mechanically securing them to said switch arm.

14. An electric switch comprising a pair et spaced insulated stationary switch members, and acooperating` movable switch member including a pivoted switch arm, a pair ot bars carried by and disposed on opposite sides oi' and extended a substantial distance above and insulated from said switch arm and arranged to cooperate Vit-h said stationary switch members, insulating` blocks interposed between said bars and said switch arm, and bolts passed through said bars` and switch arm and electrically insulated from said switch arm arranged electrically to connect said bars.

lt, ,ein elcctrc swite:

of conducta oit and ei-:tei and insulat means chin@r said b also electrically co bars having;` litteraire d conta members es.y

tions.

i ice above i arm, and switch rn bars, said portions ind por- )osed ii are eine an le -onect saidntatio members.

An electric switch including' an insulat- :asiiig providine two sepamte arc chambers open at the 'trol t, an in 'ing barrier separating` said chambers, a stations y switch member disposed in the rear ot ez., h r ber, and i movable switch member inclndii a current conduc i 1 il L i posed on opposi arrierarranged to enga ally connect said stationary switch i 1b. An electric switch inc" ingcasing piovid bers open at the iront, an separating said chambers, switch members disposed in th chambers, a second set oit sta members disposed in the trent ot said chamers, and a movable switch member includingv a bridging member disposed on opposite sides 0f said barrier and movable alternate y into engagement with both sets ot stationary switch members.

19. An electric switch including an insulating` casing,` providingtwo separ arc chambers open at the iront, one seto switch members disposed at the rea-r oit said n f` 'l f' I chambers, a second set members disposed t the i bers, and a movable switch member in 'finding a pivoted switch arm, a bridging member carried by and insnlatec '1i-om switch arn, said bridg" n'iembe1 inchrdin` two bars movable w' l rzhan bers and arranged to malrei. er" menti-i 'h said second set ot statiom switch members, sait bars having` latereily-extended end-portions, and contact members carried by said end-por- 

